Outlook Assistant MCP Server

Outlook Assistant — MCP server with 22 tools for email, calendar, contacts, and settings via Microsoft Graph API

Local serverstdioGo

What is the Outlook Assistant MCP server?

Outlook Assistant — MCP server with 22 tools for email, calendar, contacts, and settings via Microsoft Graph API. That is what the outlook assistant mcp server brings to an AI assistant: the same capability, reachable through the Model Context Protocol rather than a separate app or dashboard.

The short version

MCP server for Outlook email, calendar, and contacts — let your AI assistant manage your inbox directly from the conversation.

The tools it exposes

The server publishes 1 tool. What each one is for:

  • Prerequisites — The Prerequisites tool exposed by this server

Getting it running

The server ships on npm as @littlebearapps/outlook-assistant, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

What it needs from you

Configuration is passed through the environment: OUTLOOK_CLIENT_ID, OUTLOOK_CLIENT_SECRET, OUTLOOK_MAX_EMAILS_PER_SESSION, OUTLOOK_ALLOWED_RECIPIENTS, MS_CLIENT_ID, MS_CLIENT_SECRET. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

  • Node.js 18.0.0 or higher - npm (included with Node.js) - Azure account for app registration (free tier works)

How it compares

Among the team communication options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Outlook Assistant's toolset — Prerequisites — is a fair guide to whether it matches your workflow. It is maintained by littlebearapps; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Outlook Assistant's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Things to watch

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • Missing credentials fail quietly in some clients — if no tools show up, check the environment block first.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
PrerequisitesThe Prerequisites tool exposed by this server.

How to install the Outlook Assistant MCP server

{
  "mcpServers": {
    "outlook": {
      "command": "npx",
      "args": ["@littlebearapps/outlook-assistant"],
      "env": {
        "OUTLOOK_CLIENT_ID": "your-application-client-id",
        "OUTLOOK_CLIENT_SECRET": "your-client-secret-VALUE"
      }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Node.js 18.0.0 or higher - npm (included with Node.js) - Azure account for app registration (free tier works)
VariableDescriptionRequired
OUTLOOK_CLIENT_IDConfiguration value read at startup.Optional
OUTLOOK_CLIENT_SECRETCredential the server authenticates with.Yes
OUTLOOK_MAX_EMAILS_PER_SESSIONConfiguration value read at startup.Optional
OUTLOOK_ALLOWED_RECIPIENTSConfiguration value read at startup.Optional
MS_CLIENT_IDConfiguration value read at startup.Optional
MS_CLIENT_SECRETCredential the server authenticates with.Yes

Example prompts to try

  • Use Outlook Assistant to Prerequisites.

Frequently asked questions

It connects Outlook Assistant to MCP-compatible AI assistants such as Claude and Cursor, exposing 1 tool (Prerequisites) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Outlook Assistant directly.